參數(shù)資料
型號: HCD66712UA03
廠商: Hitachi,Ltd.
英文描述: Dot-Matrix Liquid Crystal Display Controller/Driver
中文描述: 點(diǎn)陣液晶顯示控制器/驅(qū)動器
文件頁數(shù): 54/88頁
文件大?。?/td> 662K
代理商: HCD66712UA03
HD66712U
417
Power Supply for Liquid Crystal Display Drive
1) When an external power supply is used
V
CC
V1
V2
V3
V4
V5
V
CC
R
R
R0
R
R
VR
V
EE
2) When an internal booster is used
V
CC
V1
V2
V3
V4
V5
V
CC
C1
C2
Vci
GND
V5OUT2
V5OUT3
R
R
R0
R
R
C1
C2
Vci
GND
V5OUT2
V5OUT3
R
R
R0
R
R
1 F
+
1 F
+
1 F+
1 F+
1 F
+
(Boosting twice)
(Boosting three times)
V
CC
V1
V2
V3
V4
V5
V
CC
Notes: 1.
2.
3.
Boosting output voltage should not exceed the power supply voltage (2) (13V max.)
in the absolute maximum ratings. Especially, voltage of over 4.3V should not be input
to the reference voltage (Vci) when boosting three times.
Vci input terminal is used for reference voltage and power supply for the internal booster.
Input current into the Vci pin needs three times or more of load current through the
bleeder resistor for LCD. So, when it adjusts LCD driving voltage (Vlcd), input voltage
should be controlled with transistor to supply LCD load current. Please notice
connection (+/–) when it uses capacitors with poler.
The Vci must be set below the power supply (V
CC
).
NTC-type
thermistor
NTC-type
thermistor
GND
GND
GND
GND
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